Answer / siddu

For fast retrieval(to Perform a SELECT Operation)

Answer / vikki

GENERALLY IN DWH, WE DO SELECT QUERY ONLY(99%)..
SO THE DATA ARE NOT NEED TO BE NORMALIZED AS IN DB WHERE WE DO UPDATE,SELECT,ALTER,ETC..

Answer / ankit kansal

As a denormalized table structures for a database the number
of joins to fetch the data turns out to be less and hence selection to the data becomes faster.

selecting data from one table is always better than selecting the same data from multiple tables.


http://deepinopensource.blogspot.in/

how to join the two flatfiles using the joiner t/r if there is no matching port?

5 Answers   Cegedim,

---

How to import oracle sequence into Informatica?

3 Answers   Satyam,

---

what is the size of u r source(like file or table)?

0 Answers   HP,

---

What are the data movement modes in informatica?

0 Answers   Informatica,

---

What is an aggregator transformation? it is active why cant it be passive explain?

3 Answers   HCL,

---

Can yoU use the maping parameters or variables created in one maping into another maping?

2 Answers  

---

what is the architecture of any Data warehousing project?

5 Answers   IBM,

---

How can we trouble shoot the commas in a column of a comma delimited flat file in Informatica

1 Answers  

---

Is it possible to have "5 source & 5 Target" in single mapping?

1 Answers  

---

how can you load data into target table without leading zeor's

4 Answers   Deloitte,

---

what is left outer join?

3 Answers   L&T,

---

How can you access the remote source into your session?

1 Answers  

---